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Finding the Fourth Proportional to 81,804.47, 122,706.87 and 24,878.88

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Solution

The fourth proportional to 81,804.47, 122,706.87 and 24,878.88 is: 37,318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,804.47 : 122,706.87 = 24,878.88 : x
  2. Step 2: Convert to fraction form
    81,804.47/122,706.87 = 24,878.88/x
  3. Step 3: Cross multiply
    81,804.47x = 122,706.87 × 24,878.88
  4. Step 4: Simplify right side
    81,804.47x = 3,052,809,400.61
  5. Step 5: Solve for x
    x = 3,052,809,400.61/81,804.47
  6. Step 6: Final answer
    x = 37,318.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.